Results 111 to 120 of about 6,178,117 (397)

The red stellar population in NGC 1569 [PDF]

, 2000
We present HST NICMOS photometry of the resolved stellar population in NGC 1569. The CMD in the F110W and F160W photometric bands contains ~2400 stars with a formal photometric error < 0.1 mag down to J~23.5 and H~22.5.
A. Aloisi, A. Nota, Babul A., Claus Leitherer, Cole S., E. Diolaiti, Fagotto F., Fagotto F., G. Parmeggiani, Greve A., Israel F. P., Israel F. P., Kauffmann G., L. Greggio, L. Origlia, Legrand F., M. Clampin, M. Tosi, Melnick J., Moller C. S., Papaderos P., Prada F., Stil J. M., Taylor C. L., Tomita A., Vallenari A.   +25 more
core   +2 more sources

The Average Stellar Population Age and Metallicity of Intermediate-redshift Quiescent Galaxies

The Astrophysical Journal
The HectoMAP spectroscopic survey provides a unique mass-limited sample of more than 35,000 quiescent galaxies ( D _n 4000 > 1.5) covering the redshift range 0.2  10 ^11 M _⊙ ) assemble the bulk of their stars at earlier epochs.
Ivana Damjanov, Margaret J. Geller, Jubee Sohn   +2 more
doaj   +1 more source

THE RED MSX SOURCE SURVEY: THE MASSIVE YOUNG STELLAR POPULATION OF OUR GALAXY [PDF]

, 2013
We present the Red MSX Source survey, the largest statistically selected catalog of young massive protostars and H ii regions to date. We outline the construction of the catalog using mid- and near-infrared color selection.
S. Lumsden, M. Hoare, J. Urquhart, R. Oudmaijer, B. Davies, J. Mottram, H. Cooper, T. U. O. Leeds, Leeds, Uk, Max Planck Institut fur Radioastronomie, Bonn, Germany, A. R. Institute, Liverpool John Moore's University, Liverpool, L. Observatory, Leiden University, Leiden, The Netherlands   +19 more
semanticscholar   +1 more source

The dual nature of TDC – bridging dendritic and T cells in immunity

FEBS Letters, EarlyView.
TDC are hematopoietic cells combining dendritic and T cell features. They reach secondary lymphoid organs (SLOs) and peripheral organs (liver and lungs) after FLT3‐dependent development in the bone marrow and maturation in the thymus. TDC are activated and enriched in SLOs upon viral infection, suggesting that they might play unique immune roles, since
Maria Nelli, Mirela Kuka
wiley   +1 more source

Integrated spectral energy distributions of binary star composite stellar populations

, 2012
This paper presents theoretical integrated spectral energy distributions (SEDs) of binary star composite stellar populations (bsCSPs) in early-type galaxies, and how the bsCSP model can be used for spectral studies of galaxies.
Belkus, Bruzual, Cerviño, Chabrier, Conroy, Conroy, Conroy, Gallazzi, Goldberg, Han, Han, Han, Hjellming, Hurley, Jinzhong Liu, Lançon, Le Borgne, Lee, Leitherer, Lejeune, Lejeune, Li, Li, Li, Li, Li, Liyun Zhang, Maraston, Mazeh, Mollá, Mármol-Queraltó, Robert, Salpeter, Schulz, Thomas, Tout, Van Bever, Van Bever, van Bever, Vazdekis, Vázquez, Westera, Yi, Yi, Zhang, Zhongmu Li   +45 more
core   +1 more source

Stellar Population Models and Individual Element Abundances I: Sensitivity of Stellar Evolution Models [PDF]

, 2007
Integrated light from distant galaxies is often compared to stellar population models via the equivalent widths of spectral features--spectral indices--whose strengths rely on the abundances of one or more elements. Such comparisons hinge not only on the
Aaron Dotter, Brian Chaboyer, Darko Jevremović, E. Baron, Grevesse N., Guy Worthey, Hyun‐chul Lee, Jason W. Ferguson, Salasnich B., Seaton M. J.   +9 more
core   +3 more sources

Missing Giants: Predictions on Dust-obscured Galaxy Stellar Mass Assembly Throughout Cosmic Time

The Astrophysical Journal, 2023
Due to their extremely dust-obscured nature, much uncertainty still exists surrounding the stellar mass growth and content in dusty, star-forming galaxies (DSFGs) at z > 1. In this work, we present a numerical model built using empirical data on DSFGs to
Arianna S. Long, Caitlin M. Casey, Claudia del P. Lagos, Erini L. Lambrides, Jorge A. Zavala, Jaclyn Champagne, Olivia R. Cooper, Asantha R. Cooray   +7 more
doaj   +1 more source

How sensitive are predicted galaxy luminosities to the choice of stellar population synthesis model [PDF]

, 2013
We present a new release of the GALFORM semi-analytical model of galaxy formation and evolution, which exploits a Millennium Simulation-class N-body run performed with the Wilkinson Microwave Anisotropy Probe 7 cosmology.
V. Gonzalez-Perez, C. Lacey, C. Baugh, C. Lagos, J. Helly, D. Campbell, P. Mitchell   +6 more
semanticscholar   +1 more source

Leveraging current insights on IL‐10‐producing dendritic cells for developing effective immunotherapeutic approaches

FEBS Letters, EarlyView.
In vivo IL‐10 produced by tissue‐resident tolDC is involved in maintaining/inducing tolerance. Depending on the agent used for ex vivo tolDC generation, cells acquire common features but prime T cells towards anergy, FOXP3+ Tregs, or Tr1 cells according to the levels of IL‐10 produced. Ex vivo‐induced tolDC were administered to patients to re‐establish/
Konstantina Morali, Gloria Giacomello, Michela Vuono, Silvia Gregori   +3 more
wiley   +1 more source

Do Red Galaxies Form More Stars than Blue Galaxies?

The Astrophysical Journal
A new model is proposed in which typical galaxies form most of their stellar mass in a phase with an intrinsically red stellar population. In the standard picture, galaxies with intrinsically red stellar populations are believed to have old stellar ...
Charles L. Steinhardt
doaj   +1 more source